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Customer Review

565 of 582 people found the following review helpful
4.0 out of 5 stars Transcend 4 GB Class 6 SDHC Card - Good Card for SDHC Compatible Devices, May 10, 2008
This review is from: Transcend 4 GB Class 6 SDHC Flash Memory Card TS4GSDHC6 (Personal Computers)
UPDATE - March 2, 2010: This review was originally written for the 4 GB class 6 SDHC card, but the reviews have been grouped for all class 6 SDHC cards in the 4, 8, 16 and 32 GB sizes. All the cards should perform similarly since they are all class 6 and all made by Transcend. However, I will have to check which cards I have used hands on. I believe I only own the 4GB and 8GB cards. I will update the review further. If you have concerns regarding the 16GB or 32GB sizes, you should seek out the reviews tagged with the product links from those cards.

The Transcend 4GB SDHC CARD (Class 6) is a great card for the price. I was at first a little skeptical about the brand, but I buy way too many memory cards to ignore a good price when I see one. And I'm happy to report that I've experienced decent performance and reliability issues with this card. That's as compared to other cards I own including SanDisk, PNY and Kingston.

As long as your devices are compatible with the SDHC format, this card is a good buy. 4 GB is a nice size though I do prefer 8 GB capacity for high capacity storage.

The class 6 speed is the fastest speed available in mass market SDHC cards. Class 6 guarantees minimum transfer speeds of 6 MBs, but I've gotten speeds up to 20Mbs! That makes this card perfect for storing pictures in RAW image formats.

The Class 6 speed is on par with the Sandisk Extreme III cards that on average are about $15 to $20 more per card. If you don't have an SDHC reader, you may opt to get the package with a reader included to download your pics. If not you can just transfer your pics directly from your camera with your card still inserted. An SDHC card reader can be bought separately if your PC doesn't have a compatible slot.

General SDHC and SD Card Tips

There are a few tips that I've learned the hard way through buying TOO MANY different memory cards.
1. Make sure your device is compatible with the card! Even in regular SD cards, some older electronics aren't compatible with that large of a size (2 GB). In terms of SDHC cards, make sure your camera or other device is SDHC compatible. SDHC is different from regular SD and only newer devices tend to have built-in compatibility
2. Once you install this in your camera or device, you will generally want to format the card with your compatible device's interface. That is because the standard formats for certain devices, particularly Canon, are different from the factory installed format
3. Just like your devices, most computer SD card readers are not compatible with the SDHC format. So use a card reader or download the pictures via USB connection to the camera with the card still installed.
4. For some reason, placing the card in the locked position allows some older laptops to still read it. This is just to be used in a pinch however, and it won't apply to all systems
5. If you did not properly format your card, you may be able to save things to it and then have them "disappear." If this happens to you, make sure you use the software recovery tools BEFORE you try to save anything else to your card. That way, you can retrieve your images without over-writing them.
6. Make sure you know what you are going to use this card for. Once you have set up everything and ensured it's all compatible, you still have to decide on speed. If you are using this for storing RAW images instead of JPEGs or HD video, step up to the faster class 6 speed format if you can afford it.
7. If you are going to pay more for a faster speed, make sure your device can benefit from it. I've read, for example, that Kodak cameras are set to a fixed voltage and cannot go faster than standard speed. So the extra cash spent on Class 4, 5, or 6 is basically wasted.


It's great to have several extra cards on hand just in case. This 4 GB card is a nice performer. If you have a high capacity camera (10 Megapixels or more) and are storing videos or RAW images, the extra cash for the 8GB card is worth it. Or you may want to step up to the larger 16 GB size that is now available.

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Showing 1-10 of 15 posts in this discussion
Initial post: Aug 13, 2008 7:13:43 PM PDT
A. Gheorghe says:
I have a Canon SD870 and use several SD and SDHS cards but never format them and never had a problem. Do I need to and how do I do that?
All I have been doing is take the card put it in and start taking picture:)

In reply to an earlier post on Aug 13, 2008 9:37:38 PM PDT
Mark says:
Interesting question.

Truth is, if you have never had a proplem then I would continue using your current cards as is.

But if you get a new card, or decide to format an old one, you can perform the format right from the camera's menu. It will warn you about losing any data on the card and then format the card.

Even if you did have an issue with a non-reformatted card, there are ways to recover the data on a card as long as you stop taking pictures with it.

The bottom line is, if you never had a problem with your current cards I wouldn't go formatting anything now. It's just a rule of thumb and may only apply to certain brands.

Thanks for the post.

Posted on Dec 26, 2008 9:50:20 AM PST
Mickael says:
Thanks Mark! Your review is very helpful to me. I'm buying a Canon PowerShot A590IS and a Transcend 4 GB SDHC Class 6 to go with it after reading your review. I'm not much of a camera person so I hope the A590IS does not require formatting the SDHC. :-)

In reply to an earlier post on Dec 26, 2008 10:51:33 AM PST
Mark says:
Thanks for you post. Glad to be able to help. Enjoy your new camera!

In reply to an earlier post on Jan 1, 2009 10:13:08 AM PST
Last edited by the author on Jan 1, 2009 10:13:59 AM PST
mark how can i tell how many pictures i can get out of a card never owned a digital camera before need a lot of help just purchased a canon 590is kenny

In reply to an earlier post on Jan 5, 2009 1:00:52 AM PST
Mark says:
Thanks for your post Kenny.

Estimating the number of pictures you can get on a card is definitely an inexact science at best. The good thing is that with these 4 GB cards you are likely to get many more pictures than one set of batteries will give you with your new camera.

The 590 IS is an 8 MP camera, but I believe the default is actually set to 7 MP. Regardless, for the sake of estimating let's say that you set all your pictures to maximum resolution. You should still be able to get over 1000 pictures on a 4 GB card assuming you are shooting only pictures and no video. Go down to 7 MP resolution and that number goes up to 1200 to 1300. While the size of all pictures vary, this is a pretty good estimate based upon a large number of pictures.

I have often found that my camera may *overestimate* the number of pictures that will fit on the card, so be wary of that. It's always good to make a mental note of the general number of pictures you can expect and compare it against your picture total so you're not surprised when you near full capacity. And definitely make sure to carry around several extra memory cards with you, especially at these prices.

Hope this helps. And congrats on your new camera!

In reply to an earlier post on Jan 10, 2009 9:04:56 PM PST
Did Transced 4gb work well with Canon PowerShot A590IS

In reply to an earlier post on Jan 11, 2009 6:33:21 AM PST
Mark says:
It should work without a problem. As I noted, in some cases you may have to do some things to make the card work but it should work.

Posted on Feb 4, 2009 11:22:05 AM PST
Clevelander says:
Putting the card in lock mode should still allow it to be read on all computers, not just older laptops. Lock prevents the card from being written to.

In reply to an earlier post on Feb 4, 2009 6:46:48 PM PST
Mark says:
Thanks for your post.

Yes, I know what you are getting at. I mentioned lock mode specifically as a work-around for older systems that have trouble reading SDHC cards. Not all computers have memory card slots that can read SDHC cards.
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